A compound attribute that is the ratio of amount of tumor necrosis factor receptor superfamily member 11A (human) in blood to amount of tumor necrosis factor receptor superfamily member 1A (human) in blood. The trait is TNFRSF11A/TNFRSF1A protein level ratio in blood (OBA_2053057). Also known as: the ratio of amount of tumor necrosis factor receptor superfamily member 11A (human) in blood to amount of tumor necrosis factor receptor superfamily member 1A (human) in blood.